[EN] 1,3,4-OXADIAZOLE SULFONAMIDE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME [FR] COMPOSÉS DÉRIVÉS DE 1,3,4-OXADIAZOLE SULFONAMIDE SERVANT D'INHIBITEUR DE L'HISTONE DÉSACÉTYLASE 6, ET COMPOSITION PHARMACEUTIQUE COMPRENANT CEUX-CI
Studies on Development of Sufficiently Chemoselective N-Acylation Reagents: N-Acyl-N-(2,3,4,5,6-pentafluorophenyl)methanesulfonamides
摘要:
A variety of storable N-acyl-N-(2,3,4,5,6-pentafluorophenyl)met (4a-e) prepared from N-2,3,4,5,6-pentafluorophenylmethanesulfonamide (3), have been developed after systematic research on the structure-reactivity relationship and were found to serve as N-acylation reagents exhibiting sufficiently good chemoselectivity. (C) 2000 Elsevier Science Ltd. All rights reserved.
<i>Para</i>-Selective C–H Borylation of Common Arene Building Blocks Enabled by Ion-Pairing with a Bulky Countercation
作者:Madalina T. Mihai、Benjamin D. Williams、Robert J. Phipps
DOI:10.1021/jacs.9b07267
日期:2019.10.2
The selective functionalization of C–H bonds at the arene para position is highly challenging using transition metal catalysis. Iridium-catalyzed borylation has emerged as a leading technique for arene functionalization, but there are only a handful of strategies for para-selective borylation, which operate on specific substrate classes and use bespoke ligands or catalysts. We describe a remarkably
Palladium-Catalyzed Regiocontrolled Domino Synthesis of <i>N</i>-Sulfonyl Dihydrophenanthridines and Dihydrodibenzo[<i>c</i>,<i>e</i>]azepines: Control over the Formation of Biaryl Sultams in the Intramolecular Direct Arylation
作者:Joydev K. Laha、Neetu Dayal、Roli Jain、Ketul Patel
DOI:10.1021/jo501910q
日期:2014.11.21
A palladium-catalyzed domino N-benzylation/intramolecular directarylation involving sulfonanilides and 2-bromobenzyl bromides has been developed for the first time, providing a workable access to N-sulfonyl dihydrophenanthridines in good to excellent yields. Under the optimized conditions, the formation of 5,6-dihydrophenanthridines was largely controlled over the formation of biaryl sultams containing